How do I write things in Swift?

How do I write things in Swift?

Classes

class className {
   func one(){...}
   ...
}

Protocols

protocol protocolName {
   var one: type
   ...
}

Enums

enum enumName {
   case memberValue,anotherMemberValue
   ...
}

Structs

struct structName {
   var one: type
   ...
}

Mutating Properties of a Structure

struct structName {
   mutating func functionName { 
      var one: type
      ...
   }
}

Functions

func functionName(parameters) -> returnType { 
   var one: type
   ...
}

Class-Level Functions

class func functionName(parameters) -> returnType {
   var one: type
   ...
}

Extensions (Categories)

extension classToExtend: optionalProtocol {
   var one: type
   ...
}

In-out parameters

func functionName(inout parameterName: parameterType) { 
   var one: type
   ...
}

Subscripting

struct structToSubscript {
   let constantToSubscript = value

   subscript( parameterName: parameterType ) -> returnType {
      var one: type
     ...
   }
}

Closures

{ (parameters) -> returnType in statements }

{ (parameters) -> returnType in 
   var one: type
   ...
   return result
}

Generics

func genericName<T>(parameterName: T) -> returnType { 
   var one: type
   ...
}

Type-Casting

expression as type
expression as? type

Runtime Type-Checking

expression is type

String interpolation

println("Swift makes me feel \(object) inside")

相关文章

Swift 正式开源!Swift 团队很高兴宣布 Swift 开始开源新篇章。自从苹果发布 Swfit 编程语言,就成为了...
快,快,快!动动您的小手,分享给更多朋友! 苹果去年推出了全新的编程语言Swift,试图让iOS开发更简单...
开发者(KaiFaX) 面向开发者、程序员的专业平台! 和今年年初承诺的一样,苹果贴出了Swift语言的源码,...
本文由@Chun发表于Chun Tips :http://chun.tips/blog/2014/12/11/shi-yong-swift-gou-jian-zi-ding-yi...
本文由CocoaChina译者leon(社区ID)翻译 原文:THE RIGHT WAY TO WRITE A SINGLETON 在之前的帖子里聊过...
本文由CocoaChina译者leon(社区ID)翻译 原文:THE RIGHT WAY TO WRITE A SINGLETON 在之前的帖子里聊过...